CreINNs: Credal-Set Interval Neural Networks for Uncertainty Estimation in Classification Tasks

• URL: http://arxiv.org/abs/2401.05043v2
• Date: Fri, 2 Feb 2024 21:46:57 GMT
• Title: CreINNs: Credal-Set Interval Neural Networks for Uncertainty Estimation in Classification Tasks
• Authors: Kaizheng Wang, Keivan Shariatmadar, Shireen Kudukkil Manchingal, Fabio Cuzzolin, David Moens, Hans Hallez
• Abstract summary: Uncertainty estimation is increasingly attractive for improving the reliability of neural networks. We present novel credal-set interval neural networks (CreINNs) designed for classification tasks.
• Score: 5.19656787424626
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Uncertainty estimation is increasingly attractive for improving the reliability of neural networks. In this work, we present novel credal-set interval neural networks (CreINNs) designed for classification tasks. CreINNs preserve the traditional interval neural network structure, capturing weight uncertainty through deterministic intervals, while forecasting credal sets using the mathematical framework of probability intervals. Experimental validations on an out-of-distribution detection benchmark (CIFAR10 vs SVHN) showcase that CreINNs outperform epistemic uncertainty estimation when compared to variational Bayesian neural networks (BNNs) and deep ensembles (DEs). Furthermore, CreINNs exhibit a notable reduction in computational complexity compared to variational BNNs and demonstrate smaller model sizes than DEs.

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